Comprehensive Epidemiologic Data Resource

These studies primarily use death certificate information to identify excess deaths and patterns of disease among workers to determine what factors contribute to the risk of developing cancer and other illnesses. In addition, many of these studies have radiation exposure measurements on individual workers. Other CEDR collections include historical dose reconstruction studies of past offsite radiologic and chemical exposures around the nuclear weapons facilities.

Now a mature system in routine operational use, CEDR’s modern, Internet-based systems respond to thousands of requests to its Web server daily. CEDR’s library of information, reports, journal articles, and data includes nearly 10,000 citations/documents. CEDR’s bibliographic search feature allows the user to select citations or publications associated with the studies found in the CEDR library.

CEDR’s data collection -- There are two types of data derived from epidemiologic studies: 1) Analytic data files: contain the data that a researcher directly used in conducting the analyses and result in reported findings or publication in a peer-reviewed journal. CEDR’s holdings include more than 200 analytic files. 2) Working data files: files that contain the raw or unedited data from which a researcher selected variables to form an initial analytic data file set.

The data in the working data files may contain errors; as such, it is recommended that they be analyzed and results interpreted with caution. There are more than 100 working data files in CEDR’s holdings.